The AMPA Receptor Code of Synaptic Plasticity.

The AMPA Receptor Code of Synaptic Plasticity.
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突触可塑性的AMPA受体密码

DOI:
10.1016/j.neuron.2018.10.018
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发表时间:
2018-10-24
期刊:
影响因子:
16.2
通讯作者:
Huganir RL
Huganir RL
中科院分区:
医学1区
文献类型:
--
作者:
Diering GH;Huganir RL

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ampa型谷氨酸受体(AMPARs)的特性和突触后丰度的变化是各种形式的突触可塑性的主要机制,包括长期增强(LTP)、长期抑制(LTD)和稳态缩放。AMPAR的功能和进出突触的运输由特定的AMPAR GluA1-4亚基、亚基特异性蛋白相互作用物、辅助亚基和翻译后修饰调节。通过这些不同的相互作用和修饰,调控层被添加到AMPAR四聚体中,增加了突触的计算能力。在此,我们回顾了突触可塑性对AMPAR变体的依赖,并提出了“AMPAR代码”作为概念框架。AMPAR编码表明,AMPAR变异可以预测可能发生的突触可塑性的类型和程度,并且存在一个层次结构,使得某些AMPAR在LTP/稳态放大期间会被不比例地招募到突触中,或在LTD/稳态缩小期间被移除。
Changes in the properties and post-synaptic abundance of AMPA-type glutamate receptors (AMPARs) are major mechanisms underlying various forms of synaptic plasticity, including long-term potentiation (LTP), long-term depression (LTD), and homeostatic scaling. The function and the trafficking of AMPARs to and from synapses is modulated by specific AMPAR GluA1-4 subunits, subunit specific protein interactors, auxiliary subunits, and post-translational modifications. Layers of regulation are added to AMPAR tetramers through these different interactions and modifications, increasing the computational power of synapses. Here we review the reliance of synaptic plasticity on AMPAR variants and propose “the AMPAR code” as a conceptual framework. The AMPAR code suggests that AMPAR variants will be predictive of the types and extent of synaptic plasticity which can occur and that a hierarchy exists such that certain AMPARs will be disproportionally recruited to synapses during LTP/homeostatic scaling-up, or removed during LTD/homeostatic scaling-down.
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